MongoDB Architecture Overview
Ricky Ho takes a look at MongoDB and summarizes his thoughts about:
- Major differences between MongoDB and RDBMS
- MongoDB query processing, data update, and transaction
- Storage model
- Replication model
- Sharding model
- MongoDB Map-Reduce execution
concluding:
One thing I am very impressed by MongoDb is that it is extremely easy to use and the underlying architecture is also very easy to understand.
He’s definitely not the only one.

Original title and link: MongoDB Architecture Overview (©myNoSQL)
via: http://horicky.blogspot.com/2012/04/mongodb-architecture.html